You may take them all home_______.

A. if possible     B. if can        C. unless so     D. even if you can

Calculations, which are astronomically exact, have been made    with the use of computers.

Mrs. Evens was home from work. She had just gone into the kitchen to make the afternoon tea _36_  she saw a mouse running around on the kitchen floor. She  37   and jumped up on the table. As soon as the mouse had disappeared, she jumped off from the  38 , rushed out of the kitchen, _39  her coat, ran out of the house and got on a bus  40  was going into the town. There she hurried into a shop and  41  a large mouse-trap（捕鼠夹）. She wanted to put  42  to this mouse as quickly as  43  .
When she got home  44  the trap, she realized that she had forgotten  45  any cheese （奶酪）to put in it. She searched everywhere  46  there was  47  in the house. It was too late to buy any because now all the shops were  48  . She wondered what to do. In the end she  49  a clever idea. She took a pair of scissors and cut a picture of a piece of cheese  50  a magazine. Then she put the picture in the trap  51  a piece of cheese.
The next  52  Mrs. Evans came down to the  53  and went straight away to the place  54  she had put the trap. She wanted to see if her plan had  55 . The picture of the cheese had gone and in its place was a picture of a mouse.

We Chinese can work wonders, that is, we can make ____.

A. impossible possible 

B. the impossible possible

C. impossibly possible 

D. the impossible possibly

Space exploration has been made ______ with the development of modern science and technology.

A. it possible  B. it was possible   C. that possible             D. possible